Cyber-security as an attribute of active safety systems and their migration towards vehicle automation

2013 ◽  
Author(s):  
I. Ibarra ◽  
D.D. Ward
Keyword(s):  
Cyber Security ◽  
Active Safety ◽  
Active Safety Systems ◽  
Vehicle Automation ◽  
Safety Systems

iB1350: A Generation III.7 Reactor After the Fukushima Daiichi Accident

2016 ◽  
Author(s):  
Takashi Sato ◽  
Keiji Matsumoto ◽  
Kenji Hosomi ◽  
Keisuke Taguchi
Keyword(s):  
Cooling System ◽  
Boiling Water ◽  
Passive Safety ◽  
Active Safety ◽  
Water Reactor ◽  
Airplane Crash ◽  
Passive Safety Systems ◽  
Active Safety Systems ◽  
Fukushima Daiichi ◽  
Safety Systems

iB1350 stands for an innovative, intelligent and inexpensive boiling water reactor 1350. It is the first Generation III.7 reactor after the Fukushima Daiichi accident. It has incorporated lessons learned from the Fukushima Daiichi accident and Western European Nuclear Regulation Association safety objectives. It has innovative safety to cope with devastating natural disasters including a giant earthquake, a large tsunami and a monster hurricane. The iB1350 can survive passively such devastation and a very prolonged station blackout without any support from the outside of a site up to 7 days even preventing core melt. It, however, is based on the well-established proven Advance Boiling Water Reactor (ABWR) design. The nuclear steam supply system is exactly the same as that of the current ABWR. As for safety design it has a double cylinder reinforced concrete containment vessel (Mark W containment) and an in-depth hybrid safety system (IDHS). The Mark W containment has double fission product confinement barriers and the in-containment filtered venting system (IFVS) that enable passively no emergency evacuation outside the immediate vicinity of the plant for a severe accident (SA). It has a large volume to hold hydrogen, a core catcher, a passive flooding system and an innovative passive containment cooling system (iPCCS) establishing passively practical elimination of containment failure even in a long term. The IDHS consists of 4 division active safety systems for a design basis accident, 2 division active safety systems for a SA and built-in passive safety systems (BiPSS) consisting of an isolation condenser (IC) and the iPCCS for a SA. The IC/PCCS pools have enough capacity for 7-day grace period. The IC/PCCS heat exchangers, core and spent fuel pool are enclosed inside the containment vessel (CV) building and protected against a large airplane crash. The iB1350 can survive a large airplane crash only by the CV building and the built-in passive safety systems therein. The dome of the CV building consists of a single wall made of steel and concrete composite. This single dome structure facilitates a short-term construction period and cost saving. The CV diameter is smaller than that of most PWR resulting in a smaller R/B. Each active safety division includes only one emergency core cooling system (ECCS) pump and one emergency diesel generator (EDG). Therefore, a single failure of the EDG never causes multiple failures of ECCS pumps in a safety division. The iB1350 is based on the proven ABWR technology and ready for construction. No new technology is incorporated but design concept and philosophy are initiative and innovative.

ACTIVE SAFETY SYSTEMS

2014 ◽  
pp. 71-81
Author(s):  
Igor Sergeyevich Sazonov ◽  
Mikhail Leonidovich Petrenko ◽  
Aleksandr Sergeyevich Melnikov ◽  
Olga Valeryevna Bilyk ◽  
Aleksandr Vladimirоvich Yushkevich ◽  
...  
Keyword(s):  
Active Safety ◽  
Active Safety Systems ◽  
Safety Systems

Identification of a Driver Steering Model, and Model Uncertainty, From Driving Simulator Data

2001 ◽  
Author(s):  
Liang-Kuang Chen ◽  
A. Galip Ulsoy
Keyword(s):  
Model Uncertainty ◽  
Driving Simulator ◽  
Driver Model ◽  
Active Safety ◽  
Control Loop ◽  
Structured Uncertainty ◽  
Active Safety Systems ◽  
Safety Systems ◽  
Uncertainty Models ◽  
Adaptation Scheme

Abstract Driver steering models have been extensively studied. However, driver model uncertainty has received relatively little attention. For active safety systems that function while the driver is still in the control loop, such uncertainty can affect overall system performance significantly. In this paper, an approach to obtain both the driver model and its uncertainty from driving simulator data is presented. The structured uncertainty is used to represent the driver’s time-varying behavior, and the unstructured uncertainty is used to account for unmodeled dynamics. The uncertainty models can be used to represent both the uncertainty within one driver and the uncertainty across multiple drivers. The results show that the unstructured uncertainty is significant, probably due to randomness in driver behavior. The structured uncertainty suggests that an estimation and adaptation scheme might be applicable for the design of controllers for active safety systems.

From Adaptive Cruise Control to Active Safety Systems

2001 ◽  
Author(s):  
Francisco Sánchez ◽  
Marc Seguer ◽  
Antoni Freixa ◽  
Peter Andreas ◽  
Klaus Sochaski ◽  
...  
Keyword(s):  
Adaptive Cruise Control ◽  
Active Safety ◽  
Cruise Control ◽  
Active Safety Systems ◽  
Safety Systems
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